Apple Watch Series 12 is a more powerful health and fitness tracker. Better understand your body with the most accurate heart rate sensing in a wearable,(1) with high-frequency HRV readings for insights into stress and recovery, hypertension notifications,(5) cycle tracking(6) and sleep score.(7) Stay motivated with readiness, advanced workout metrics and features like Pacer, Heart Rate Zones and more. And now every day is more effortless with Siri AI(3) and Audio Intelligence.(4)
Stay closer to your heart health
The most accurate heart rate sensing in a wearable,(1) Series 12 now measures HRV as often as every five minutes for insights into stress and recovery, and takes background heart rate readings every five seconds.
A full-featured health tracker
Better understand your body with invaluable health insights. View your overnight health metrics with the Vitals app(7) and get a daily sleep score, track your menstrual cycle(6) and take readings of your blood oxygen.(8)
Check your readiness for the day
Know when to rest or put yourself to the test. The readiness experience can help you determine your capacity to take on the day by analysing your recent activity, vitals and sleep.
A powerful fitness tracker
With advanced metrics and motivating features like Pacer, Heart Rate Zones and Workout Buddy powered by Apple Intelligence from your nearby iPhone(2) — Series 12 helps you stay active, from running to hiking to strength training.
Keep help close at hand
A smartwatch that puts your safety first. Series 12 can detect a hard fall or serious car crash, automatically help connect you with emergency services and notify your emergency contacts.(9)
Enjoy all-day battery life
With up to 24 hours of normal use so you can do all the things you love for longer.(10) And it only takes 15 minutes to fast-charge for up to 12 hours of normal use.(11)
Siri AI and Audio Intelligence
Using just your voice, engage in natural, back-and-forth conversations, brainstorm ideas and more with Siri AI.(3) Audio Intelligence helps catch what you missed and summarise conversations with Live Rewind and Siri Recap.(4) Siri AI is rolling out in English. Some Audio Intelligence features coming in beta late 2026. Usage limits may apply.
Built to last
Apple Watch Series 12 aluminium cases now have Ceramic Shield 2 — which is tougher than any smartwatch glass. Titanium and ceramic cases have a super-durable crack-resistant sapphire crystal display.
Stay connected
Series 12 (GPS) works with your iPhone or Wi-Fi to keep you connected. Use your smartwatch to send a text, take a call, listen to music, use Siri and get notifications.
The freedom of cellular
With just your smartwatch, you can take and make calls, stream music and podcasts, and listen with your AirPods — even without your iPhone.(12)
Apple Watch Series 12 requires iPhone 11 or later with iOS 27 or later.
(1) Based on Apple-conducted study of heart rate accuracy, August 2026. Visit apple.com/uk/HRAccuracy.
(2) Requires a paired Apple Intelligence–enabled iPhone and Bluetooth headphones with device and Siri language set to English or Spanish. To use Workout Buddy without your iPhone nearby, you must have a Wi-Fi or cellular connection. Some features may not be available in all regions or languages. For feature and language availability and system requirements, see support.apple.com/en-gb/121115.
(3) Apple Intelligence is available with Siri and device language set to Chinese (Simplified), Chinese (Traditional), Danish, Dutch, English, French, German, Italian, Japanese, Korean, Norwegian, Portuguese, Spanish, Swedish, Turkish or Vietnamese. Some features may not be available in all regions or languages. Some devices may not be available in all regions. Siri AI is available in beta in watchOS 27 and requires an Apple Intelligence–enabled device set to a supported language. Available in English to start. Siri AI will not be initially available in the EU on watchOS. Certain Apple Intelligence features that rely on server-side models are subject to daily usage limits, including but not limited to Siri AI. Daily limits may vary by feature, request complexity, system demand, system policies and other factors. Expanded access to such features will be available for a fee in the future. Use of these features is subject to the Apple Intelligence Terms and Conditions. Learn more at apple.com/uk/apple-intelligence.
(4) Audio Intelligence includes Live Rewind, Siri Recap, Sound Recognition and faster Shazam and requires Apple Watch Series 12 or Apple Watch Ultra 4. Live Rewind and Siri Recap will be available in beta in late 2026 and require an Apple Intelligence–enabled iPhone 16 or later (excluding iPhone 16e). Will be available in English to start and will not initially be available in the EU. Certain Audio Intelligence features that rely on server-side models are subject to daily usage limits, including but not limited to Live Rewind and Siri Recap. For more information, visit support.apple.com/en-gb/148354.
(5) Hypertension notifications are not intended for use by people under 22 years old, those who have been previously diagnosed with hypertension, or pregnant persons.
(6) The Cycle Tracking app should not be used for birth control or to diagnose a health condition. Cycle deviation notifications inclusive of perimenopause are for people 40 years old or older.
(7) The Vitals app is for wellness purposes only and not for medical use.
(8) The Blood Oxygen app is for wellness purposes only and not for medical use. Measurements are calculated and viewed on iPhone in the Health app. The Blood Oxygen app is available on Apple Watch Series 6 and later (excluding Apple Watch SE models) and all Apple Watch Ultra models.
(9) Emergency SOS requires a cellular connection or Wi-Fi calling with an internet connection from your Apple Watch or nearby iPhone. You can use cellular models of Apple Watch to make an emergency call in many locations, provided that mobile service is available. Some mobile networks may not accept an emergency call from your Apple Watch if your Apple Watch isn’t activated, if it isn’t compatible with or configured to operate on a particular mobile network, if it isn’t set up for mobile service, or if the mobile network does not support emergency calling over IMS. See support.apple.com/en-gb/108374 and apple.com/uk/watch/cellular for more information.
(10) Battery life varies by use and configuration. See apple.com/uk/watch/battery for more information.
(11) Testing conducted by Apple in July and August 2026 using pre-production Apple Watch Series 12 (GPS) and Apple Watch Series 12 (GPS + Cellular), each paired with an iPhone; all devices tested with pre-release software, pre-production Apple Watch Magnetic Fast Charger to USB-C Cable (Model A3277), and Apple 20W USB-C Power Adapter (Model A2305). Charge time varies with adapter, region, settings, initial battery levels, usage and environmental factors; actual results will vary.
(12) Wireless service plan required for mobile service. Contact your service provider for more details. Connection may vary based on network availability. Check apple.com/uk/watch/cellular for participating network providers and eligibility. See support.apple.com/en-gb/HT207578 for additional setup instructions.
Additional information: manufacturers often update their Operating System (OS) software over the course of a device's lifespan - this means that your product might ship with a more advanced OS than specified.
We can help you get set up
Our specialist in-store Partners can help you to get set up on your new device right away. We can help with anything from transferring personal data from your old device to setting up any essential features.
Visit your local shop with your new device, or simply Click & Collect from a John Lewis & Partners when purchasing and an available Technical Support Partner can set it up for you.
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